<html><head><meta http-equiv="content-type" content="text/html; charset=UTF-8"> <style>
	.KEYW {color: #933;}
	.COMM {color: #bbb; font-style: italic;}
	.NUMB {color: #393;}
	.STRN {color: #393;}
	.REGX {color: #339;}
	.line {border-right: 1px dotted #666; color: #666; font-style: normal;}
	</style></head><body><pre><span class='line'>  1</span> <span class="COMM">/* ***** BEGIN LICENSE BLOCK *****
<span class='line'>  2</span>  *
<span class='line'>  3</span>  * Copyright 2008-2009 Jean-Christophe Sirot &lt;sirot@xulfactory.org>
<span class='line'>  4</span>  *
<span class='line'>  5</span>  * This file is part of jsChessboard.
<span class='line'>  6</span>  *
<span class='line'>  7</span>  * jsChessboard is free software: you can redistribute it and/or modify it under
<span class='line'>  8</span>  * the terms of the GNU General Public License as published by the Free Software
<span class='line'>  9</span>  * Foundation, either version 3 of the License, or (at your option) any later
<span class='line'> 10</span>  * version.
<span class='line'> 11</span>  *
<span class='line'> 12</span>  * jsChessboard is distributed in the hope that it will be useful, but
<span class='line'> 13</span>  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
<span class='line'> 14</span>  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
<span class='line'> 15</span>  * more details.
<span class='line'> 16</span>  *
<span class='line'> 17</span>  * You should have received a copy of the GNU General Public License along with
<span class='line'> 18</span>  * jsChessboard. If not, see http://www.gnu.org/licenses/.
<span class='line'> 19</span>  *
<span class='line'> 20</span>  * ***** END LICENSE BLOCK *****  */</span><span class="WHIT">
<span class='line'> 21</span> 
<span class='line'> 22</span> </span><span class="COMM">/**
<span class='line'> 23</span>  * @private
<span class='line'> 24</span>  * This is a temporary bugfix against chromium issue #40931 since that issue
<span class='line'> 25</span>  * is present in the Chrome stable release. This patch will be removed later...
<span class='line'> 26</span>  * http://code.google.com/p/chromium/issues/detail?id=40931
<span class='line'> 27</span>  */</span><span class="WHIT">
<span class='line'> 28</span> </span><span class="PUNC">(</span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 29</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="STRN">"-"</span><span class="PUNC">.</span><span class="NAME">split</span><span class="PUNC">(</span><span class="REGX">/-/</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 30</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"index"</span><span class="WHIT"> </span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 31</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">oldSplit</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">String.prototype.split</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 32</span> </span><span class="WHIT">            </span><span class="COMM">/** @private */</span><span class="WHIT">
<span class='line'> 33</span> </span><span class="WHIT">            </span><span class="NAME">String.prototype.split</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 34</span> </span><span class="WHIT">                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">result</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">oldSplit.apply</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 35</span> </span><span class="NAME">Array.prototype.slice.apply</span><span class="PUNC">(</span><span class="NAME">arguments</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 36</span> </span><span class="WHIT">                </span><span class="KEYW">delete</span><span class="WHIT"> </span><span class="NAME">result</span><span class="PUNC">[</span><span class="STRN">'index'</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 37</span> </span><span class="WHIT">                </span><span class="KEYW">delete</span><span class="WHIT"> </span><span class="NAME">result</span><span class="PUNC">[</span><span class="STRN">'input'</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 38</span> </span><span class="WHIT">                </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">result</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 39</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 40</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 41</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 42</span> </span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'> 43</span> 
<span class='line'> 44</span> </span><span class="COMM">/**
<span class='line'> 45</span>  * @namespace
<span class='line'> 46</span>  * Global namespace defined by the library.
<span class='line'> 47</span>  * @author &lt;a href="mailto:sirot@xulfactory.org">Jean-Christophe Sirot&lt;/a>
<span class='line'> 48</span>  */</span><span class="WHIT">
<span class='line'> 49</span> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">Chessboard</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 50</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner Default gfx setting */</span><span class="WHIT">
<span class='line'> 51</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">defaultGfx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 52</span> </span><span class="WHIT">        </span><span class="NAME">white</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"rgb(251,246,229)"</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 53</span> </span><span class="WHIT">        </span><span class="NAME">black</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"rgb(0,127,0)"</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 54</span> </span><span class="WHIT">        </span><span class="NAME">wk</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 55</span> </span><span class="WHIT">        </span><span class="NAME">wq</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 56</span> </span><span class="WHIT">        </span><span class="NAME">wb</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 57</span> </span><span class="WHIT">        </span><span class="NAME">wn</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 58</span> </span><span class="WHIT">        </span><span class="NAME">wr</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 59</span> </span><span class="WHIT">        </span><span class="NAME">wp</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 60</span> </span><span class="WHIT">        </span><span class="NAME">bk</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 61</span> </span><span class="WHIT">        </span><span class="NAME">bq</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 62</span> </span><span class="WHIT">        </span><span class="NAME">bb</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 63</span> </span><span class="WHIT">        </span><span class="NAME">bn</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 64</span> </span><span class="WHIT">        </span><span class="NAME">br</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 65</span> </span><span class="WHIT">        </span><span class="NAME">bp</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">""</span><span class="WHIT">
<span class='line'> 66</span> </span><span class="WHIT">	</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 67</span> 
<span class='line'> 68</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'> 69</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">parser</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 70</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'> 71</span>          * @private
<span class='line'> 72</span>          * Parses a chess move in short algebraic notation.
<span class='line'> 73</span>          */</span><span class="WHIT">
<span class='line'> 74</span> </span><span class="WHIT">        </span><span class="NAME">parse</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 75</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">mre</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">RegExp</span><span class="PUNC">(</span><span class="STRN">"^([KQBNR]?)([a-h]?)([1-8]?)(x?)([a-h][1-8])(=([QRBN]))?"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 76</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">mre.test</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 77</span> </span><span class="WHIT">                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">m</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">mre.exec</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 78</span> </span><span class="WHIT">                </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">parser.makeMove</span><span class="PUNC">(</span><span class="NAME">m</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">m</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">m</span><span class="PUNC">[</span><span class="NUMB">3</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">m</span><span class="PUNC">[</span><span class="NUMB">4</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">m</span><span class="PUNC">[</span><span class="NUMB">5</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">m</span><span class="PUNC">[</span><span class="NUMB">7</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 79</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 80</span> </span><span class="WHIT">                </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Move parsing failed"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 81</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 82</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 83</span> 
<span class='line'> 84</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'> 85</span>          * @private
<span class='line'> 86</span>          * Gathers all information of a move in a single object.
<span class='line'> 87</span>          * @param {String} piece the piece type (K,Q,R,B,N) or empty string for
<span class='line'> 88</span>          *        the pawn
<span class='line'> 89</span>          * @param {String} fromCol the origin column for disambiguation. May be
<span class='line'> 90</span>          *        undefined
<span class='line'> 91</span>          * @param {String} fromRow the origin row for disambiguation. May be
<span class='line'> 92</span>          *        undefined
<span class='line'> 93</span>          * @param {Boolean} capture indicates if the move captures an opponent
<span class='line'> 94</span>          *        piece
<span class='line'> 95</span>          * @param {String} dest the code of the piece destination square
<span class='line'> 96</span>          *
<span class='line'> 97</span>          * @return the move object
<span class='line'> 98</span>          */</span><span class="WHIT">
<span class='line'> 99</span> </span><span class="WHIT">        </span><span class="NAME">makeMove</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">piece</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">fromCol</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">fromRow</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">capture</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">dest</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">promotion</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>100</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">move</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>101</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">piece</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>102</span> </span><span class="WHIT">                </span><span class="NAME">move.piece</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">piece</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>103</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>104</span> </span><span class="WHIT">                </span><span class="NAME">move.piece</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">"P"</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>105</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>106</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>107</span> </span><span class="WHIT">                </span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">fromCol.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">96</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>108</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>109</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>110</span> </span><span class="WHIT">                </span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">fromRow.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">48</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>111</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>112</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">capture</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">""</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>113</span> </span><span class="WHIT">                </span><span class="NAME">move.capture</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>114</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>115</span> </span><span class="WHIT">                </span><span class="NAME">move.capture</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>116</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>117</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">promotion</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>118</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">piece</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">""</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT">
<span class='line'>119</span> </span><span class="WHIT">                    </span><span class="PUNC">(</span><span class="NAME">dest.substring</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">"1"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">dest.substring</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">"8"</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>120</span> </span><span class="WHIT">                </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>121</span> </span><span class="WHIT">                    </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Move parsing failed"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>122</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>123</span> </span><span class="WHIT">                </span><span class="NAME">move.promotion</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">promotion</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>124</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>125</span> </span><span class="WHIT">            </span><span class="NAME">move.dest</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">dest</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>126</span> </span><span class="WHIT">            </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>127</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>128</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>129</span> 
<span class='line'>130</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>131</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">fen</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>132</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>133</span>          * @private
<span class='line'>134</span>          */</span><span class="WHIT">
<span class='line'>135</span> </span><span class="WHIT">        </span><span class="NAME">decode</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">game</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pos</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>136</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">blacks</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">RegExp</span><span class="PUNC">(</span><span class="STRN">"[prnbqk]"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>137</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">whites</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">RegExp</span><span class="PUNC">(</span><span class="STRN">"[PRNBQK]"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>138</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">digits</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">RegExp</span><span class="PUNC">(</span><span class="STRN">"[1-8]"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>139</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">col</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">row</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>140</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">pos.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>141</span> </span><span class="WHIT">                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pos.charAt</span><span class="PUNC">(</span><span class="NAME">i</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>142</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">digits.test</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>143</span> </span><span class="WHIT">                    </span><span class="NAME">col</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">c.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">48</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>144</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">blacks.test</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>145</span> </span><span class="WHIT">                    </span><span class="NAME">game.set</span><span class="PUNC">(</span><span class="STRN">"b"</span><span class="PUNC">.</span><span class="NAME">concat</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">col</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">row</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>146</span> </span><span class="WHIT">                    </span><span class="NAME">col</span><span class="PUNC">++</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>147</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">whites.test</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>148</span> </span><span class="WHIT">                    </span><span class="NAME">game.set</span><span class="PUNC">(</span><span class="STRN">"w"</span><span class="PUNC">.</span><span class="NAME">concat</span><span class="PUNC">(</span><span class="NAME">c.toLowerCase</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">col</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">row</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>149</span> </span><span class="WHIT">                    </span><span class="NAME">col</span><span class="PUNC">++</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>150</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"/"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>151</span> </span><span class="WHIT">                    </span><span class="NAME">row</span><span class="PUNC">--</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>152</span> </span><span class="WHIT">                    </span><span class="NAME">col</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>153</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>154</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>155</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>156</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>157</span> 
<span class='line'>158</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>159</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">utils</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>160</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>161</span>          * @private
<span class='line'>162</span>          * Converts a column code ['a'-'h'] into an integer [1-8]
<span class='line'>163</span>          */</span><span class="WHIT">
<span class='line'>164</span> </span><span class="WHIT">        </span><span class="NAME">col</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>165</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">col</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sq.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">96</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>166</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">col</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">col</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>167</span> </span><span class="WHIT">                </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Invalid position"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>168</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>169</span> </span><span class="WHIT">            </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">col</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>170</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>171</span> 
<span class='line'>172</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>173</span>          * @private
<span class='line'>174</span>          * Converts a row code ['1'-'8'] into an integer [1-8]
<span class='line'>175</span>          */</span><span class="WHIT">
<span class='line'>176</span> </span><span class="WHIT">        </span><span class="NAME">row</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>177</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">row</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sq.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">48</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>178</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">row</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">row</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>179</span> </span><span class="WHIT">                </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Invalid position"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>180</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>181</span> </span><span class="WHIT">            </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">row</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>182</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>183</span> 
<span class='line'>184</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>185</span>          * @private
<span class='line'>186</span>          * Converts a couple column, row into a square code
<span class='line'>187</span>          * @return {String} a square code or undefined if the square does not
<span class='line'>188</span>          *         exist (row and column out of range)
<span class='line'>189</span>          */</span><span class="WHIT">
<span class='line'>190</span> </span><span class="WHIT">        </span><span class="NAME">toSquare</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">col</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">row</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>191</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">row</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">row</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">8</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">col</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">col</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>192</span> </span><span class="WHIT">                </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>193</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>194</span> </span><span class="WHIT">            </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">String.fromCharCode</span><span class="PUNC">(</span><span class="NUMB">96</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">col</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">48</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">row</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>195</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>196</span> 
<span class='line'>197</span> </span><span class="WHIT">        </span><span class="COMM">/** @private */</span><span class="WHIT">
<span class='line'>198</span> </span><span class="WHIT">        </span><span class="NAME">checkSquareValidity</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>199</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">regexp</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">RegExp</span><span class="PUNC">(</span><span class="STRN">"^[a-h][1-8]"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>200</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">regexp.test</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>201</span> </span><span class="WHIT">                </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Invalide square code: "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>202</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>203</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>204</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>205</span> 
<span class='line'>206</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>207</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">gfx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>208</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>209</span>          * @private
<span class='line'>210</span>          * Draw the chessboard diagram into the target canvas
<span class='line'>211</span>          * @param {ChessGame} game the position to be drawn
<span class='line'>212</span>          * @param target the canvas element or the id attribute of the canvas
<span class='line'>213</span>          *        element
<span class='line'>214</span>          */</span><span class="WHIT">
<span class='line'>215</span> </span><span class="WHIT">        </span><span class="NAME">drawBoard</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">game</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">target</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>216</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">canvas</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>217</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">target</span><span class="WHIT"> </span><span class="KEYW">instanceof</span><span class="WHIT"> </span><span class="NAME">HTMLCanvasElement</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>218</span> </span><span class="WHIT">                 </span><span class="NAME">canvas</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">target</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>219</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>220</span> </span><span class="WHIT">                 </span><span class="NAME">canvas</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">document.getElementById</span><span class="PUNC">(</span><span class="NAME">target</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>221</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>222</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">canvas</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">canvas</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>223</span> </span><span class="WHIT">                </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Target canvas not found: "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">target</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>224</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>225</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">canvas.height</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NUMB">400</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>226</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">canvas.getContext</span><span class="PUNC">(</span><span class="STRN">"2d"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>227</span> </span><span class="WHIT">            </span><span class="NAME">gfx.initBoard</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>228</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">game.pieces</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>229</span> </span><span class="WHIT">	        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">game.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>230</span> </span><span class="WHIT">                    </span><span class="NAME">gfx.drawPiece</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">game.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>231</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>232</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>233</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>234</span> 
<span class='line'>235</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>236</span>          * @private
<span class='line'>237</span>          * Draw the chessboard without the pieces
<span class='line'>238</span>          * @param ctx the 2D context of the canvas element
<span class='line'>239</span>          * @param {Number} the drawing ratio
<span class='line'>240</span>          */</span><span class="WHIT">
<span class='line'>241</span> </span><span class="WHIT">        </span><span class="NAME">initBoard</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>242</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">50</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>243</span> </span><span class="WHIT">            </span><span class="NAME">ctx.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">gfx.images.black</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">//"rgb(0,127,0)";</span><span class="WHIT">
<span class='line'>244</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>245</span> </span><span class="WHIT">                </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>246</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">%</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>247</span> </span><span class="WHIT">                        </span><span class="NAME">ctx.fillRect</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="PUNC">*</span><span class="NAME">sz</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">*</span><span class="NAME">sz</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>248</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>249</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>250</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>251</span> </span><span class="WHIT">            </span><span class="NAME">ctx.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">gfx.images.white</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">//"rgb(251,246,229)";</span><span class="WHIT">
<span class='line'>252</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>253</span> </span><span class="WHIT">                </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>254</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">%</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>255</span> </span><span class="WHIT">                        </span><span class="NAME">ctx.fillRect</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="PUNC">*</span><span class="NAME">sz</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">*</span><span class="NAME">sz</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>256</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>257</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>258</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>259</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>260</span> 
<span class='line'>261</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>262</span>          * @private
<span class='line'>263</span>          * Draw a chess piece
<span class='line'>264</span>          * @param ctx the 2D context of the canvas element
<span class='line'>265</span>          * @param {Number} the drawing ratio
<span class='line'>266</span>          * @param {Piece} piece the piece to be drawn
<span class='line'>267</span>          * @param {String} sq the code of the square on which the piece is drawn
<span class='line'>268</span>          */</span><span class="WHIT">
<span class='line'>269</span> </span><span class="WHIT">       </span><span class="NAME">drawPiece_async</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">piece</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>270</span> </span><span class="WHIT">            </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>271</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">mkdraw</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">img</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">s</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>272</span> </span><span class="WHIT">                </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT"> </span><span class="NAME">ctx.drawImage</span><span class="PUNC">(</span><span class="NAME">img</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">s</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">s</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>273</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>274</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">50</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>275</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">x</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">sq.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">97</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>276</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">y</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NUMB">8</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">sq.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">48</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>277</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">img</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">Image</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>278</span> </span><span class="WHIT">            </span><span class="NAME">img.src</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">gfx.images</span><span class="PUNC">[</span><span class="NAME">piece.code</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>279</span> </span><span class="WHIT">            </span><span class="NAME">img.onload</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">mkdraw</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">img</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>280</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>281</span> 
<span class='line'>282</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>283</span>          * @private
<span class='line'>284</span>          * Draw a chess piece
<span class='line'>285</span>          * @param ctx the 2D context of the canvas element
<span class='line'>286</span>          * @param {Number} the drawing ratio
<span class='line'>287</span>          * @param {Piece} piece the piece to be drawn
<span class='line'>288</span>          * @param {String} sq the code of the square on which the piece is drawn
<span class='line'>289</span>          */</span><span class="WHIT">
<span class='line'>290</span> </span><span class="WHIT">       </span><span class="NAME">drawPiece_sync</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">piece</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>291</span> </span><span class="WHIT">            </span><span class="COMM">/* for browsers which do not support delayed image loading */</span><span class="WHIT">
<span class='line'>292</span> </span><span class="WHIT">			</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ratio</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">50</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>293</span> </span><span class="WHIT">            </span><span class="NAME">x</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">sq.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">97</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>294</span> </span><span class="WHIT">            </span><span class="NAME">y</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NUMB">8</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">sq.charCodeAt</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">48</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>295</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">img</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">Image</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>296</span> </span><span class="WHIT">            </span><span class="NAME">img.src</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">gfx.images</span><span class="PUNC">[</span><span class="NAME">piece.code</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>297</span> </span><span class="WHIT">            </span><span class="NAME">ctx.drawImage</span><span class="PUNC">(</span><span class="NAME">img</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sz</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>298</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>299</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>300</span> 
<span class='line'>301</span> </span><span class="WHIT">    </span><span class="COMM">/** @private */</span><span class="WHIT">
<span class='line'>302</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">Piece</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">code</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>303</span> </span><span class="WHIT">        </span><span class="NAME">this.checkValidity</span><span class="PUNC">(</span><span class="NAME">code</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>304</span> </span><span class="WHIT">        </span><span class="NAME">this.code</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">code</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>305</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>306</span> 
<span class='line'>307</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>308</span> </span><span class="WHIT">    </span><span class="NAME">Piece.prototype.type</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>309</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">this.code.charAt</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">toUpperCase</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>310</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>311</span> 
<span class='line'>312</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>313</span> </span><span class="WHIT">    </span><span class="NAME">Piece.prototype.isWhite</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>314</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">this.code.charAt</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">toLowerCase</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"w"</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>315</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>316</span> 
<span class='line'>317</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>318</span> </span><span class="WHIT">    </span><span class="NAME">Piece.prototype.isBlack</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>319</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">this.code.charAt</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">toLowerCase</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"b"</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>320</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>321</span> 
<span class='line'>322</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>323</span> </span><span class="WHIT">    </span><span class="NAME">Piece.prototype.checkValidity</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">code</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>324</span> </span><span class="WHIT">        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">regexp</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">RegExp</span><span class="PUNC">(</span><span class="STRN">"^[wb][kqbnrp]"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>325</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">regexp.test</span><span class="PUNC">(</span><span class="NAME">code</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>326</span> </span><span class="WHIT">            </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Invalide piece code: "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">code</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>327</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>328</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>329</span> 
<span class='line'>330</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>331</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">support</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>332</span> </span><span class="WHIT">        </span><span class="NAME">_isPlayerColor</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">game</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>333</span> </span><span class="WHIT">            </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">game.playerWhite</span><span class="WHIT"> </span><span class="PUNC">?</span><span class="WHIT"> </span><span class="NAME">p.isWhite</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">p.isBlack</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>334</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>335</span> 
<span class='line'>336</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>337</span>          * Move a piece on a chessboard.
<span class='line'>338</span>          *
<span class='line'>339</span>          * @function _move
<span class='line'>340</span>          * @param {ChessGame} game the ChessGame on which the move is applied
<span class='line'>341</span>          * @param {String} from the code of the origin square
<span class='line'>342</span>          * @param {String} to the code of the destination square
<span class='line'>343</span>          * @param {String} the code (Q, B, N, R) of the piece if the move
<span class='line'>344</span>          *        is a pawn promotion, &lt;code>undefined&lt;/code> otherwise.
<span class='line'>345</span>          */</span><span class="WHIT">
<span class='line'>346</span> </span><span class="WHIT">        </span><span class="NAME">_move</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">game</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">from</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">to</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">promotion</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>347</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">game.pieces</span><span class="PUNC">[</span><span class="NAME">from</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>348</span> </span><span class="WHIT">            </span><span class="NAME">game.pieces</span><span class="PUNC">[</span><span class="NAME">from</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>349</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">promotion</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>350</span> </span><span class="WHIT">                </span><span class="NAME">game.pieces</span><span class="PUNC">[</span><span class="NAME">to</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>351</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>352</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p.isWhite</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>353</span> </span><span class="WHIT">                    </span><span class="NAME">game.set</span><span class="PUNC">(</span><span class="STRN">"w"</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">promotion.toLowerCase</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">to</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>354</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>355</span> </span><span class="WHIT">                    </span><span class="NAME">game.set</span><span class="PUNC">(</span><span class="STRN">"b"</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">promotion.toLowerCase</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">to</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>356</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>357</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>358</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>359</span> 
<span class='line'>360</span> </span><span class="WHIT">        </span><span class="NAME">_checkCapture</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">game</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>361</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.capture</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>362</span> </span><span class="WHIT">                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">game.pieces</span><span class="PUNC">[</span><span class="NAME">move.dest</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>363</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">this._isPlayerColor</span><span class="PUNC">(</span><span class="NAME">game</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>364</span> </span><span class="WHIT">                    </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>365</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>366</span> </span><span class="WHIT">                    </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"No piece to capture in "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>367</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>368</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>369</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>370</span> 
<span class='line'>371</span> </span><span class="WHIT">        </span><span class="NAME">_checkEmpty</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">game</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>372</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">move.capture</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>373</span> </span><span class="WHIT">                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">game.pieces</span><span class="PUNC">[</span><span class="NAME">move.dest</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>374</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>375</span> </span><span class="WHIT">                    </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Non empty square: "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>376</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>377</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>378</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>379</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>380</span> 
<span class='line'>381</span> </span><span class="WHIT">    </span><span class="COMM">/** @inner
<span class='line'>382</span>      * The callbacks invoked to apply a piece move on a chessboard position.
<span class='line'>383</span>      */</span><span class="WHIT">
<span class='line'>384</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">callbacks</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>385</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>386</span>          * @private Casteling callback
<span class='line'>387</span>          * @function O
<span class='line'>388</span>          */</span><span class="WHIT">
<span class='line'>389</span> </span><span class="WHIT">        </span><span class="NAME">O</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">longCasteling</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>390</span> </span><span class="WHIT">            </span><span class="COMM">/** @inner */</span><span class="WHIT">
<span class='line'>391</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">isEmpty</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">game</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>392</span> </span><span class="WHIT">                </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>393</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">game.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>394</span> </span><span class="WHIT">                    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>395</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>396</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>397</span> 
<span class='line'>398</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.playerWhite</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>399</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">longCasteling</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>400</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"b1"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>401</span> </span><span class="WHIT">                        </span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"c1"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>402</span> </span><span class="WHIT">                        </span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"d1"</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>403</span> </span><span class="WHIT">                    </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>404</span> </span><span class="WHIT">                        </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Long casteling not authorized"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>405</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>406</span> </span><span class="WHIT">                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"e1"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"c1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>407</span> </span><span class="WHIT">                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"a1"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"d1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>408</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>409</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"f1"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>410</span> </span><span class="WHIT">                        </span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"g1"</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>411</span> </span><span class="WHIT">                    </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>412</span> </span><span class="WHIT">                        </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Short casteling not authorized"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>413</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>414</span> </span><span class="WHIT">                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"e1"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"g1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>415</span> </span><span class="WHIT">                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"h1"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"f1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>416</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>417</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>418</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">longCasteling</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>419</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"b8"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>420</span> </span><span class="WHIT">                        </span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"c8"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>421</span> </span><span class="WHIT">                        </span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"d8"</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>422</span> </span><span class="WHIT">                    </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>423</span> </span><span class="WHIT">                        </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Long casteling not authorized"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>424</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>425</span> </span><span class="WHIT">                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"e8"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"c8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>426</span> </span><span class="WHIT">                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"a8"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"d8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>427</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>428</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"f8"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>429</span> </span><span class="WHIT">                        </span><span class="PUNC">!</span><span class="NAME">isEmpty</span><span class="PUNC">(</span><span class="STRN">"g8"</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>430</span> </span><span class="WHIT">                    </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>431</span> </span><span class="WHIT">                        </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Short casteling not authorized"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>432</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>433</span> </span><span class="WHIT">                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"e8"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"g8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>434</span> </span><span class="WHIT">                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"h8"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"f8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>435</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>436</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>437</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>438</span> 
<span class='line'>439</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>440</span>          * @private Pawn move callback
<span class='line'>441</span>          * @function P
<span class='line'>442</span>          */</span><span class="WHIT">
<span class='line'>443</span> </span><span class="WHIT">        </span><span class="NAME">P</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>444</span> </span><span class="WHIT">            </span><span class="NAME">support._checkCapture</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>445</span> </span><span class="WHIT">            </span><span class="NAME">support._checkEmpty</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>446</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.playerWhite</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>447</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">move.capture</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>448</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>449</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>450</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>451</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>452</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"P"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.isWhite</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>453</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>454</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.promotion</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>455</span> </span><span class="WHIT">                                </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Missing pawn promotion"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>456</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>457</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>458</span> </span><span class="WHIT">                        </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.promotion</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>459</span> </span><span class="WHIT">                        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>460</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>461</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">4</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">p</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>462</span> </span><span class="WHIT">                        </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>463</span> </span><span class="WHIT">                        </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>464</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"P"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.isWhite</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>465</span> </span><span class="WHIT">                            </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>466</span> </span><span class="WHIT">                            </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>467</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>468</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>469</span> </span><span class="WHIT">                    </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Pawn cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>470</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>471</span> </span><span class="WHIT">                    </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">move.fromCol</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>472</span> </span><span class="WHIT">                    </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>473</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p2</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">move.dest</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>474</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"P"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.isWhite</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>475</span> </span><span class="WHIT">                            </span><span class="NAME">p2</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p2.isBlack</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>476</span> </span><span class="WHIT">                    </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>477</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">8</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>478</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.promotion</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>479</span> </span><span class="WHIT">                                </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Missing pawn promotion"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>480</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>481</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>482</span> </span><span class="WHIT">                        </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.promotion</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>483</span> </span><span class="WHIT">                        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>484</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>485</span> </span><span class="WHIT">                    </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Pawn cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>486</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>487</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>488</span> </span><span class="WHIT">                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">move.capture</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>489</span> </span><span class="WHIT">                    </span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>490</span> </span><span class="WHIT">                    </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>491</span> </span><span class="WHIT">                    </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>492</span> </span><span class="WHIT">                    </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>493</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"P"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.isBlack</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>494</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>495</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.promotion</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>496</span> </span><span class="WHIT">                                </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Missing pawn promotion"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>497</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>498</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>499</span> </span><span class="WHIT">                        </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.promotion</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>500</span> </span><span class="WHIT">                        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>501</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>502</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">5</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">p</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>503</span> </span><span class="WHIT">                        </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>504</span> </span><span class="WHIT">                        </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>505</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"P"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.isBlack</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>506</span> </span><span class="WHIT">                            </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>507</span> </span><span class="WHIT">                            </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>508</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>509</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>510</span> </span><span class="WHIT">                    </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Pawn cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>511</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>512</span> </span><span class="WHIT">                    </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">move.fromCol</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>513</span> </span><span class="WHIT">                    </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>514</span> </span><span class="WHIT">                    </span><span class="NAME">p2</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">move.dest</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>515</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"P"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>516</span> </span><span class="WHIT">                            </span><span class="NAME">p.isBlack</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p2</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p2.isWhite</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>517</span> </span><span class="WHIT">                    </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>518</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>519</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.promotion</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>520</span> </span><span class="WHIT">                                </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Missing pawn promotion"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>521</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>522</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>523</span> </span><span class="WHIT">                        </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.promotion</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>524</span> </span><span class="WHIT">                        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>525</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>526</span> </span><span class="WHIT">                    </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Pawn cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>527</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>528</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>529</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>530</span> 
<span class='line'>531</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>532</span>          * @private Knight move callback
<span class='line'>533</span>          * @function N
<span class='line'>534</span>          */</span><span class="WHIT">
<span class='line'>535</span> </span><span class="WHIT">        </span><span class="NAME">N</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>536</span> </span><span class="WHIT">            </span><span class="NAME">support._checkCapture</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>537</span> </span><span class="WHIT">            </span><span class="NAME">support._checkEmpty</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>538</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>539</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>540</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">+</span><span class="PUNC">=</span><span class="NUMB">2</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>541</span> </span><span class="WHIT">                </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">+</span><span class="PUNC">=</span><span class="NUMB">2</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>542</span> </span><span class="WHIT">                    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>543</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>544</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NUMB">3</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">)</span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>545</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>546</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>547</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"N"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>548</span> </span><span class="WHIT">                            </span><span class="NAME">support._isPlayerColor</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>549</span> </span><span class="WHIT">                        </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>550</span> </span><span class="WHIT">                            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>551</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>552</span> </span><span class="WHIT">                                </span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>553</span> </span><span class="WHIT">                            </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>554</span> </span><span class="WHIT">                                </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>555</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>556</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>557</span> </span><span class="WHIT">                                </span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>558</span> </span><span class="WHIT">                            </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>559</span> </span><span class="WHIT">                                </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>560</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>561</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">from</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>562</span> </span><span class="WHIT">                                </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>563</span> </span><span class="WHIT">                                </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>564</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>565</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>566</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>567</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>568</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>569</span> </span><span class="WHIT">            </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Knight cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>570</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>571</span> 
<span class='line'>572</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>573</span>          * @private Bishop move callback
<span class='line'>574</span>          * @function B
<span class='line'>575</span>          */</span><span class="WHIT">
<span class='line'>576</span> </span><span class="WHIT">        </span><span class="NAME">B</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>577</span> </span><span class="WHIT">            </span><span class="NAME">support._checkCapture</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>578</span> </span><span class="WHIT">            </span><span class="NAME">support._checkEmpty</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>579</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>580</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>581</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">+</span><span class="PUNC">=</span><span class="NUMB">2</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>582</span> </span><span class="WHIT">                </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">+</span><span class="PUNC">=</span><span class="NUMB">2</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>583</span> </span><span class="WHIT">                    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">7</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>584</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">*</span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>585</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">*</span><span class="NAME">j</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>586</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>587</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>588</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>589</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"B"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">support._isPlayerColor</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>590</span> </span><span class="WHIT">                                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>591</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>592</span> </span><span class="WHIT">                                    </span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>593</span> </span><span class="WHIT">                                </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>594</span> </span><span class="WHIT">                                    </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>595</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>596</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>597</span> </span><span class="WHIT">                                    </span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>598</span> </span><span class="WHIT">                                </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>599</span> </span><span class="WHIT">                                    </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>600</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>601</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">from</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>602</span> </span><span class="WHIT">                                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>603</span> </span><span class="WHIT">                                    </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>604</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>605</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>606</span> </span><span class="WHIT">                                </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>607</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>608</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>609</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>610</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>611</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>612</span> </span><span class="WHIT">            </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Bishop cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>613</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>614</span> 
<span class='line'>615</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>616</span>          * @private Rook move callback
<span class='line'>617</span>          * @function R
<span class='line'>618</span>          */</span><span class="WHIT">
<span class='line'>619</span> </span><span class="WHIT">        </span><span class="NAME">R</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>620</span> </span><span class="WHIT">            </span><span class="NAME">support._checkCapture</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>621</span> </span><span class="WHIT">            </span><span class="NAME">support._checkEmpty</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>622</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>623</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>624</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>625</span> </span><span class="WHIT">                </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">+</span><span class="PUNC">=</span><span class="NUMB">2</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>626</span> </span><span class="WHIT">                    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">7</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>627</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">*</span><span class="NAME">i</span><span class="PUNC">*</span><span class="NAME">j</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>628</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">*</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">-</span><span class="NAME">i</span><span class="PUNC">)</span><span class="PUNC">*</span><span class="NAME">j</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>629</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>630</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>631</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>632</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"R"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">support._isPlayerColor</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>633</span> </span><span class="WHIT">                                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>634</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>635</span> </span><span class="WHIT">                                    </span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>636</span> </span><span class="WHIT">                                </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>637</span> </span><span class="WHIT">                                    </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>638</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>639</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>640</span> </span><span class="WHIT">                                    </span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>641</span> </span><span class="WHIT">                                </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>642</span> </span><span class="WHIT">                                    </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>643</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>644</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">from</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>645</span> </span><span class="WHIT">                                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>646</span> </span><span class="WHIT">                                    </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>647</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>648</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>649</span> </span><span class="WHIT">                                </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>650</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>651</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>652</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>653</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>654</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>655</span> </span><span class="WHIT">            </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Rook cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>656</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>657</span> 
<span class='line'>658</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>659</span>          * @private Queen move callback
<span class='line'>660</span>          * @function Q
<span class='line'>661</span>          */</span><span class="WHIT">
<span class='line'>662</span> </span><span class="WHIT">        </span><span class="NAME">Q</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>663</span> </span><span class="WHIT">            </span><span class="NAME">support._checkCapture</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>664</span> </span><span class="WHIT">            </span><span class="NAME">support._checkEmpty</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>665</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>666</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>667</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>668</span> </span><span class="WHIT">                </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>669</span> </span><span class="WHIT">                    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">k</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">7</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>670</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">*</span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>671</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">k</span><span class="PUNC">*</span><span class="NAME">j</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>672</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>673</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>674</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>675</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"Q"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">support._isPlayerColor</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>676</span> </span><span class="WHIT">                                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>677</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>678</span> </span><span class="WHIT">                                    </span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>679</span> </span><span class="WHIT">                                </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>680</span> </span><span class="WHIT">                                    </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>681</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>682</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>683</span> </span><span class="WHIT">                                    </span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>684</span> </span><span class="WHIT">                                </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>685</span> </span><span class="WHIT">                                    </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>686</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>687</span> </span><span class="WHIT">                                </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">from</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>688</span> </span><span class="WHIT">                                    </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>689</span> </span><span class="WHIT">                                    </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>690</span> </span><span class="WHIT">                                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>691</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>692</span> </span><span class="WHIT">                                </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>693</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>694</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>695</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>696</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>697</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>698</span> </span><span class="WHIT">            </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"Queen cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>699</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>700</span> 
<span class='line'>701</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>702</span>          * @private King move callback
<span class='line'>703</span>          * @function K
<span class='line'>704</span>          */</span><span class="WHIT">
<span class='line'>705</span> </span><span class="WHIT">        </span><span class="NAME">K</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">move</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>706</span> </span><span class="WHIT">            </span><span class="NAME">support._checkCapture</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>707</span> </span><span class="WHIT">            </span><span class="NAME">support._checkEmpty</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>708</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>709</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>710</span> </span><span class="WHIT">            </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>711</span> </span><span class="WHIT">                </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">&lt;=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>712</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">c</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cl</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>713</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">r</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rw</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>714</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toSquare</span><span class="PUNC">(</span><span class="NAME">c</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">r</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>715</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>716</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>717</span> </span><span class="WHIT">                        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">p.type</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"K"</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>718</span> </span><span class="WHIT">                            </span><span class="NAME">support._isPlayerColor</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>719</span> </span><span class="WHIT">                        </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>720</span> </span><span class="WHIT">                            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>721</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>722</span> </span><span class="WHIT">                                </span><span class="NAME">move.fromCol</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.col</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>723</span> </span><span class="WHIT">                            </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>724</span> </span><span class="WHIT">                                </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>725</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>726</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>727</span> </span><span class="WHIT">                                </span><span class="NAME">move.fromRow</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">utils.row</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT">
<span class='line'>728</span> </span><span class="WHIT">                            </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>729</span> </span><span class="WHIT">                                </span><span class="NAME">from</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>730</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>731</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">from</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>732</span> </span><span class="WHIT">                                </span><span class="NAME">support._move</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>733</span> </span><span class="WHIT">                                </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>734</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>735</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>736</span> </span><span class="WHIT">                            </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>737</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>738</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>739</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>740</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>741</span> </span><span class="WHIT">            </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">"King cannot move to "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">move.dest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>742</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>743</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>744</span> 
<span class='line'>745</span> </span><span class="WHIT">    </span><span class="COMM">/** @scope Chessboard */</span><span class="WHIT">
<span class='line'>746</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>747</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>748</span>          * Creates a new game with all pieces set at their initial position
<span class='line'>749</span>          * @returns {Chessboard.ChessGame} a new chess game
<span class='line'>750</span>          */</span><span class="WHIT">
<span class='line'>751</span> </span><span class="WHIT">        </span><span class="NAME">newGame</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>752</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">arguments.length</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>753</span> </span><span class="WHIT">                </span><span class="COMM">//alert(arguments[0]);</span><span class="WHIT">
<span class='line'>754</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>755</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">game</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.ChessGame</span><span class="PUNC">)</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>756</span> </span><span class="WHIT">            </span><span class="NAME">game.reset</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>757</span> </span><span class="WHIT">            </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">game</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>758</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>759</span> 
<span class='line'>760</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>761</span>          * Creates a new ChessGame instance. This constructor should not
<span class='line'>762</span>          * be called directly. Call Chessboard.newGame() to create a new
<span class='line'>763</span>          * ChessGame.
<span class='line'>764</span>          *
<span class='line'>765</span>          * @class This class represents a chess game.
<span class='line'>766</span>          */</span><span class="WHIT">
<span class='line'>767</span> </span><span class="WHIT">        </span><span class="NAME">ChessGame</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>768</span> </span><span class="WHIT">            </span><span class="NAME">this.playerWhite</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>769</span> </span><span class="WHIT">            </span><span class="NAME">this.pieces</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>770</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>771</span> 
<span class='line'>772</span> </span><span class="WHIT">        </span><span class="COMM">/**
<span class='line'>773</span>          * @private
<span class='line'>774</span>          * This initialization method is called when the script is
<span class='line'>775</span>          * loaded by the browser.
<span class='line'>776</span>          */</span><span class="WHIT">
<span class='line'>777</span> </span><span class="WHIT">        </span><span class="NAME">initialize</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>778</span> </span><span class="WHIT">            </span><span class="COMM">/* Initialize gfx */</span><span class="WHIT">
<span class='line'>779</span> </span><span class="WHIT">            </span><span class="NAME">gfx.images</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">defaultGfx</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>780</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">window.opera</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>781</span> </span><span class="WHIT">                </span><span class="NAME">gfx.drawPiece</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">gfx.drawPiece_sync</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>782</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>783</span> </span><span class="WHIT">                </span><span class="NAME">gfx.drawPiece</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">gfx.drawPiece_async</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>784</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>785</span> 
<span class='line'>786</span> </span><span class="WHIT">            </span><span class="NAME">this.ChessGame.prototype</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>787</span> </span><span class="WHIT">                </span><span class="COMM">/**
<span class='line'>788</span>                  * Resets the game to the initial chessboard position.
<span class='line'>789</span>                  * @method reset
<span class='line'>790</span>                  */</span><span class="WHIT">
<span class='line'>791</span> </span><span class="WHIT">                </span><span class="NAME">reset</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>792</span> </span><span class="WHIT">                    </span><span class="NAME">this.pieces</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>793</span> </span><span class="WHIT">                    </span><span class="NAME">this.playerWhite</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>794</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wk"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"e1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>795</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bk"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"e8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>796</span> 
<span class='line'>797</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wq"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"d1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>798</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bq"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"d8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>799</span> 
<span class='line'>800</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wb"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"c1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>801</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wb"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"f1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>802</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bb"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"c8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>803</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bb"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"f8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>804</span> 
<span class='line'>805</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wn"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"b1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>806</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wn"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"g1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>807</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bn"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"b8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>808</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bn"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"g8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>809</span> 
<span class='line'>810</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wr"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"a1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>811</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wr"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"h1"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>812</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"br"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"a8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>813</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"br"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"h8"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>814</span> 
<span class='line'>815</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"a2"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>816</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"b2"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>817</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"c2"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>818</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"d2"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>819</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"e2"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>820</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"f2"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>821</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"g2"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>822</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"wp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"h2"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>823</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"a7"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>824</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"b7"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>825</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"c7"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>826</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"d7"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>827</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"e7"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>828</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"f7"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>829</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"g7"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>830</span> </span><span class="WHIT">                    </span><span class="NAME">this.set</span><span class="PUNC">(</span><span class="STRN">"bp"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">"h7"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>831</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>832</span> 
<span class='line'>833</span> </span><span class="WHIT">                </span><span class="COMM">/**
<span class='line'>834</span>                  * Removes all pieces or clear a single square of the chessboard.
<span class='line'>835</span>                  */</span><span class="WHIT">
<span class='line'>836</span> </span><span class="WHIT">                </span><span class="NAME">clear</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>837</span> </span><span class="WHIT">                    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">arguments.length</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>838</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">arguments</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>839</span> </span><span class="WHIT">                        </span><span class="NAME">utils.checkSquareValidity</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>840</span> </span><span class="WHIT">                        </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>841</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>842</span> </span><span class="WHIT">                        </span><span class="NAME">this.pieces</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>843</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>844</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>845</span> 
<span class='line'>846</span> </span><span class="WHIT">                </span><span class="COMM">/**
<span class='line'>847</span>                  * Sets a piece on a square of the chessboard.
<span class='line'>848</span>                  * &lt;p>The piece code is a String of the form XY where:&lt;/p>
<span class='line'>849</span>                  * &lt;ul>
<span class='line'>850</span>                  *   &lt;li>X is the piece color:
<span class='line'>851</span>                  *     &lt;ul>
<span class='line'>852</span>                  *       &lt;li>'w' for white
<span class='line'>853</span>                  *       &lt;li>'b' for black
<span class='line'>854</span>                  *     &lt;/ul>
<span class='line'>855</span>                  *   &lt;/li>
<span class='line'>856</span>                  *   &lt;li>Y is the piece type
<span class='line'>857</span>                  *     &lt;ul>
<span class='line'>858</span>                  *       &lt;li>'k' for King
<span class='line'>859</span>                  *       &lt;li>'q' for Queen
<span class='line'>860</span>                  *       &lt;li>'r' for Rook
<span class='line'>861</span>                  *       &lt;li>'b' for Bishop
<span class='line'>862</span>                  *       &lt;li>'n' for Knight
<span class='line'>863</span>                  *       &lt;li>'p' for Pawn
<span class='line'>864</span>                  *     &lt;/ul>
<span class='line'>865</span>                  *   &lt;/li>
<span class='line'>866</span>                  * &lt;/ul>
<span class='line'>867</span>                  *
<span class='line'>868</span>                  * &lt;p>The square code uses the traditional chess square
<span class='line'>869</span>                  * notation: 'a1', 'f6' or 'h8' are valid squares.&lt;/p>
<span class='line'>870</span>                  *
<span class='line'>871</span>                  * &lt;p>Examples:&lt;/p>
<span class='line'>872</span>                  * &lt;ul>
<span class='line'>873</span>                  *   &lt;li>&lt;pre>set('wq', 'd1')&lt;/pre> puts a white queen on square 'd1'&lt;/li>
<span class='line'>874</span>                  *   &lt;li>&lt;pre>set('bn', 'c6')&lt;/pre> puts a black knight on square 'c6'&lt;/li>
<span class='line'>875</span>                  * &lt;/ul>
<span class='line'>876</span>                  *
<span class='line'>877</span>                  * @method set
<span class='line'>878</span>                  * @param {String} code the code of the piece to set.
<span class='line'>879</span>                  * @param {String} sq the code
<span class='line'>880</span>                  *
<span class='line'>881</span>                  */</span><span class="WHIT">
<span class='line'>882</span> </span><span class="WHIT">                </span><span class="NAME">set</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">code</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">sq</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>883</span> </span><span class="WHIT">                    </span><span class="NAME">utils.checkSquareValidity</span><span class="PUNC">(</span><span class="NAME">sq</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>884</span> </span><span class="WHIT">                    </span><span class="NAME">this.pieces</span><span class="PUNC">[</span><span class="NAME">sq</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">Piece</span><span class="PUNC">(</span><span class="NAME">code</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>885</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>886</span> 
<span class='line'>887</span> </span><span class="WHIT">                </span><span class="COMM">/**
<span class='line'>888</span>                  * Clears the chessboard and sets the chessboard using the
<span class='line'>889</span>                  * Forsyth-Edwards notation (FEN).
<span class='line'>890</span>                  *
<span class='line'>891</span>                  * @param {String} fenPosition the position using Forsyth-Edwards notation.
<span class='line'>892</span>                  * @see &lt;a href="http://en.wikipedia.org/wiki/FEN">FEN notation details&lt;/a>
<span class='line'>893</span>                  */</span><span class="WHIT">
<span class='line'>894</span> </span><span class="WHIT">                </span><span class="NAME">setFen</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">fenPosition</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>895</span> </span><span class="WHIT">                    </span><span class="NAME">this.clear</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>896</span> </span><span class="WHIT">                    </span><span class="NAME">fen.decode</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">fenPosition</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>897</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>898</span> 
<span class='line'>899</span> </span><span class="WHIT">                </span><span class="COMM">/**
<span class='line'>900</span>                  * Changes the current player to white.
<span class='line'>901</span>                  */</span><span class="WHIT">
<span class='line'>902</span> </span><span class="WHIT">                </span><span class="NAME">setWhite</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>903</span> </span><span class="WHIT">                    </span><span class="NAME">this.playerWhite</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>904</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>905</span> 
<span class='line'>906</span> </span><span class="WHIT">                </span><span class="COMM">/**
<span class='line'>907</span>                  * Changes the current player to black.
<span class='line'>908</span>                  */</span><span class="WHIT">
<span class='line'>909</span> </span><span class="WHIT">                </span><span class="NAME">setBlack</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>910</span> </span><span class="WHIT">                    </span><span class="NAME">this.playerWhite</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>911</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>912</span> 
<span class='line'>913</span> </span><span class="WHIT">                </span><span class="COMM">/**
<span class='line'>914</span>                  * Applies a sequence of piece moves to the current position.
<span class='line'>915</span>                  * &lt;p>Code sample:&lt;/p>
<span class='line'>916</span>                  * &lt;pre>
<span class='line'>917</span>                  * var game = Chessboard.newGame();
<span class='line'>918</span>                  * game.move("e4, e5, Nf3");
<span class='line'>919</span>                  * game.draw("myboard");
<span class='line'>920</span>                  * &lt;/pre>
<span class='line'>921</span>                  *
<span class='line'>922</span>                  * @method move
<span class='line'>923</span>                  * @param {String} moves a comma separated list of
<span class='line'>924</span>                  *        moves in the short algebraic notation.
<span class='line'>925</span>                  */</span><span class="WHIT">
<span class='line'>926</span> </span><span class="WHIT">                </span><span class="NAME">move</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">moves</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>927</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">re</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">RegExp</span><span class="PUNC">(</span><span class="STRN">"\\s*,\\s*"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>928</span> </span><span class="WHIT">                    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">splits</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">moves.split</span><span class="PUNC">(</span><span class="NAME">re</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>929</span> </span><span class="WHIT">                    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">splits</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>930</span> </span><span class="WHIT">                        </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">mv</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">splits</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>931</span> </span><span class="WHIT">                        </span><span class="COMM">//~ alert(mv);</span><span class="WHIT">
<span class='line'>932</span> </span><span class="WHIT">                        </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>933</span> </span><span class="WHIT">                            </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">mv</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"O-O-O"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>934</span> </span><span class="WHIT">                                </span><span class="NAME">callbacks.O.call</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>935</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">mv</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">"O-O"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>936</span> </span><span class="WHIT">                                </span><span class="NAME">callbacks.O.call</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>937</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>938</span> </span><span class="WHIT">                                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">move</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parser.parse</span><span class="PUNC">(</span><span class="NAME">mv</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>939</span> </span><span class="WHIT">                                </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">fct</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">callbacks</span><span class="PUNC">[</span><span class="NAME">move.piece</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>940</span> </span><span class="WHIT">                                </span><span class="NAME">fct.call</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">move</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>941</span> </span><span class="WHIT">                            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>942</span> </span><span class="WHIT">                            </span><span class="NAME">this.playerWhite</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">this.playerWhite</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>943</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>944</span> </span><span class="WHIT">                            </span><span class="KEYW">throw</span><span class="PUNC">(</span><span class="STRN">"Invalid move: "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">mv</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">"\n"</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">e</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>945</span> </span><span class="WHIT">                        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>946</span> </span><span class="WHIT">                    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>947</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>948</span> 
<span class='line'>949</span> </span><span class="WHIT">                </span><span class="COMM">/**
<span class='line'>950</span>                  * Draw a chessboard diagram representing the current
<span class='line'>951</span>                  * game position.
<span class='line'>952</span>                  * @param target either the canvas element on
<span class='line'>953</span>                  *        which the chessboard must be drawn or the DOM id
<span class='line'>954</span>                  *        attribute of the canvas element.
<span class='line'>955</span>                  */</span><span class="WHIT">
<span class='line'>956</span> </span><span class="WHIT">                </span><span class="NAME">draw</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">target</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>957</span> </span><span class="WHIT">                    </span><span class="NAME">gfx.drawBoard</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">target</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>958</span> </span><span class="WHIT">                </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>959</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>960</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>961</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>962</span> </span><span class="PUNC">}</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>963</span> 
<span class='line'>964</span> </span><span class="NAME">Chessboard.initialize</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>965</span> </span></pre></body></html>